LARGE FITS DOGS 61 LBS TO 100 LBS - Top of Shoulders/Base of Neck Measuring a Diameter 21.75" - 27.0"; Chest Measuring a Diameter 27.5" - 36.75" LUXURIOUS SOFT-SHELL FABRIC - Waterproof, high visibility, soft-shell polyester nylon blend for durability and comfort. FLEECE LINED - The SafetyPUP XD Soft-shell vest is lined with a light fleece to prevent chaffing while adding a small degree of warmth in the cooler months. UTILITY STRAP INCLUDED - For added convenience we've added a utility strap to the side of the vest. Hang a poop bag or carabineer to hold lightweight accessories.